EP1200740A1 - Förderpumpe - Google Patents
FörderpumpeInfo
- Publication number
- EP1200740A1 EP1200740A1 EP01923657A EP01923657A EP1200740A1 EP 1200740 A1 EP1200740 A1 EP 1200740A1 EP 01923657 A EP01923657 A EP 01923657A EP 01923657 A EP01923657 A EP 01923657A EP 1200740 A1 EP1200740 A1 EP 1200740A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- impeller
- shaft
- feed pump
- pump according
- recess
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/188—Rotors specially for regenerative pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/20—Mounting rotors on shafts
Definitions
- the invention relates to a feed pump, in particular for delivering fuel from a fuel tank of a motor vehicle or for delivering washing liquid from a windshield washer system, with an impeller which is arranged in a rotationally fixed manner on a driven shaft and with a housing which faces a subarea of the impeller at a short distance.
- Such feed pumps are usually designed as peripheral pumps or side channel pumps and are known from practice.
- the impeller has guide vanes with which it accelerates the medium to be conveyed and conveys it from an inlet channel to an outlet channel.
- the guide vanes are shaped accordingly for the highest possible efficiency.
- the shaft usually has a lateral flattening at its free end, while the impeller has a recess designed in accordance with the free end of the shaft.
- the dimensions of the guide vanes are usually very small for conveying fuel or washing liquid in a motor vehicle and are therefore very difficult to recognize. Therefore, a faultless assembly of the impeller is not guaranteed.
- the invention is based on the problem of designing a feed pump of the type mentioned at the outset in such a way that it is particularly simple and error-free to install.
- This design ensures that the feed pump according to the invention can only be mounted if the impeller is arranged on the shaft in its intended position. Through this design the impeller cannot be rotated on the shaft, so that its direction of rotation, in which the feed pump is highly efficient, is reliably determined. Therefore, even with very small dimensions of the guide vanes, the impeller can be installed very easily and without errors.
- the means for the correct arrangement of the impeller are structurally particularly simple if the impeller has a projection arranged near one of its end faces for engaging in a shoulder-like recess of the shaft designed corresponding to the projection and if the shaft is axially immovable relative to one another the housing is held.
- the housing can only be installed if the impeller is fixed in the correct position on the shaft.
- the means for correctly arranging the impeller require a particularly low structural outlay if the shaft has two non-parallel and / or different flats on its lateral surface for a form-fitting connection in the direction of rotation with a correspondingly shaped recess of the impeller , With this design, the correct installation of the impeller on the shaft can be recognized before the housing is installed.
- the feed pump according to the invention has a particularly high efficiency if the impeller has means for the mobility of its outer edge with respect to the shaft in the pivoting direction about an axis arranged transversely to the shaft and / or with respect to its radially inner region in the axial direction.
- the radially outer region of the impeller in the housing can tilt by a predetermined amount or shift slightly.
- the position of the impeller can be adapted by the forces of an axial bearing in the housing. This leads to a simplification of the assembly of the feed pump, since a particularly precise assembly of the impeller is not necessary thanks to the invention.
- a grinding of the impeller on the housing is reliably avoided and noise is kept particularly low.
- rattling noises can be kept particularly low if the impeller has a depression surrounding the shaft in its area adjacent to the shaft.
- the connection of the impeller to the shaft can be limited to the intended dimensions at an intended height of the impeller. With a very small play of the impeller against the shaft, these dimensions are decisive for the intended swiveling of the impeller.
- Another advantage of this design is that the impeller cannot grind against the housing in the region of the depression.
- the depression could be arranged on an end face of the impeller. To further reduce the noise of the feed pump according to the invention, however, it contributes if a depression is arranged in each of the two end faces of the impeller.
- a play between the shaft and the impeller can be kept particularly low if the impeller is pivotable according to another advantageous development of the invention if the impeller is designed to be elastic, at least in its radially inner region. In the best case, the impeller can be pressed onto the shaft.
- the elastic design of the radially inner region enables simple swiveling and axial mobility of the radially outer edge of the impeller.
- the elastic region of the impeller could, for example, be produced in that the impeller has an insert made of an elastic material in this region.
- the elastic area of the impeller is However, according to another advantageous development of the invention, it is particularly cost-effective if the impeller has a groove arranged concentrically with the shaft.
- FIG. 2a shows a sectional view through the feed pump according to the invention from FIG. 1 along the line II-II,
- FIG. 3 shows a longitudinal section through a further embodiment of the feed pump according to the invention
- FIG. 4 shows a sectional view through the feed pump according to the invention from FIG. 3 along the line IV-IV,
- Fig. 5 shows a longitudinal section through a further embodiment of the feed pump according to the invention.
- FIG. 1 shows a sectional view through a feed pump according to the invention, designed as a side channel pump, with an impeller 2 rotatable in a housing 1.
- the impeller 2 is arranged on a driven shaft 3 in a rotationally fixed and slightly axially displaceable manner.
- the shaft 3 can for example be designed as a motor shaft of an electric motor, not shown.
- the housing 1 has two by means of one Rings 4 spaced housing parts 5, 6 and a rolled up at the edges of the housing parts 5, 6 sheet metal strip 7 to bias them against the ring 4.
- an inlet channel 8 is arranged, while the other housing part 5 has an outlet channel 9 ,
- the inlet channel 8 and the outlet channel 9 are each connected to partially annular channels 10, 11.
- the impeller 2 has vane chambers 14, 15 delimited by guide vanes 12, 13 in the region of the partially annular channels 10, 11. In this region, the housing 1 faces the impeller 2 to form sealing gaps at a particularly small distance. In the end faces of the impeller 2 there are mutually opposed pockets 16 of axial sliding bearings 17 which are connected to one another by channels 18. When the impeller 2 rotates in the housing 1, fuel or windshield washer fluid, for example, can be conveyed from the inlet duct 8 through the impeller 2 to the outlet duct 9.
- the feed pump can of course also be designed as a peripheral pump, in which the rotor blades 12, 13 are arranged on the circumference of the impeller 2.
- the impeller 2 In its radially inner region, the impeller 2 has a recess 19, 20 in each of the two end faces. These recesses 19, 20 limit the dimensions with which the impeller 2 is connected to the shaft 3 and, in conjunction with a slight play of the impeller 2, enable on the shaft 3 a slight tilting of the impeller 2 about an axis running perpendicular to the plane of the drawing. As a result, the impeller 2 can adapt to the dimensions of the housing 1 in its radially outer region, which has the blade chambers 14, 15. This adaptation is also improved in that the impeller 2 is made slightly elastic in its radially inner region by the recesses 19, 20. The position of the radially outer region of the impeller 2 is set by the forces of the axial slide bearing 17 and thus grinding of the impeller 2 on the housing parts 5, 6 is prevented.
- Figure 2 shows in a sectional view through the feed pump of Figure 1 along the line II - II that the shaft 3 for rotationally fixed connection to the impeller 2 has two flats 21, 22 on its outer surface.
- the impeller 2 has a recess 23 designed in accordance with the shaft 3.
- the flats 21, 22 run at an angle of 90 ° to one another and therefore not parallel. As a result, the impeller 2 can only be mounted on the shaft 3 in the intended direction of rotation and thus in the correct position.
- the flats 21, 22 also have different dimensions and, according to FIG. 2b, can be arranged at an angle other than 90 ° C. but ⁇ 180 ° C. to one another.
- FIG. 3 shows a further embodiment of the feed pump, in which a housing 24 is axially immovably connected to an electric motor 25 provided for driving it.
- a shaft 27 which is positively connected in the direction of rotation to an impeller 26 has a shoulder-like recess 28 for receiving a projection 29 of the impeller 26.
- the housing 24 of the feed pump is axially immovably connected to an electric motor 25.
- the impeller 26 can be mounted in the housing 24 only in the position shown and thus in the direction of rotation provided.
- the impeller 26 has a recess 30 in the region of the shaft 27.
- the dimensions of the recess 30 in the impeller 26 limit the dimensions of the connection of the impeller 26 to the shaft 27 to an intended dimension.
- the radially outer region of the impeller 26 can thereby tilt slightly relative to the shaft 27 and thus adapt to tolerances of the housing. Due to the radial dimensions of the depression 30, an intended elasticity of the radially inner region of the impeller 26 can be ensured.
- Figure 4 shows in a sectional view along the line IV - IV through the feed pump of Figure 3 that the shoulder-like recess 28 of the shaft 27 has a flat 31 for non-rotatable connection with a correspondingly shaped recess 32 of the impeller 26.
- Figure 5 shows a further embodiment of the feed pump in a sectional view. This differs from that of FIG. 1 primarily in that an impeller 33 has two grooves 35, 36 arranged concentrically with the shaft 34. These grooves 35, 36 produce elasticity in the radially inner region of the impeller 33 and therefore enable one low axial mobility and a pivotability of its radially outer area about an axis arranged perpendicular to the plane of the drawing. The impeller 33 can therefore be attached to the shaft 34 without play.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10019913A DE10019913A1 (de) | 2000-04-20 | 2000-04-20 | Förderpumpe |
DE10019913 | 2000-04-20 | ||
PCT/EP2001/002670 WO2001081769A1 (de) | 2000-04-20 | 2001-03-09 | Förderpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1200740A1 true EP1200740A1 (de) | 2002-05-02 |
EP1200740B1 EP1200740B1 (de) | 2007-02-14 |
Family
ID=7639662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01923657A Expired - Lifetime EP1200740B1 (de) | 2000-04-20 | 2001-03-09 | Förderpumpe |
Country Status (10)
Country | Link |
---|---|
US (1) | US6488466B2 (de) |
EP (1) | EP1200740B1 (de) |
JP (1) | JP2003532011A (de) |
KR (1) | KR100764942B1 (de) |
CN (1) | CN100516545C (de) |
AU (1) | AU5037501A (de) |
BR (1) | BR0106074B1 (de) |
DE (2) | DE10019913A1 (de) |
ES (1) | ES2280358T3 (de) |
WO (1) | WO2001081769A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE45402E1 (en) | 1999-07-13 | 2015-03-03 | Stirling Mouldings Limited | Flexible material |
GB2352208B (en) | 1999-07-13 | 2001-06-13 | Stirling Moulded Composites Lt | Flexible material |
DE10161662B4 (de) * | 2001-12-14 | 2005-11-10 | Siemens Ag | Seitenkanalpumpe |
US7618241B2 (en) | 2005-06-03 | 2009-11-17 | Ti Group Automotive Systems, L.L.C. | Fuel pump |
US8689707B2 (en) * | 2006-05-26 | 2014-04-08 | Fuel Tech, Inc. | Ultra low NOx burner replacement system |
DE102006053933A1 (de) * | 2006-11-15 | 2008-05-21 | Siemens Ag | Seitenkanalpumpe |
KR100924019B1 (ko) | 2008-03-04 | 2009-10-28 | 한국기계연구원 | 인라인용 연료펌프의 윤활성 향상을 위한 케리어 구조 |
JP2016223323A (ja) * | 2015-05-28 | 2016-12-28 | 株式会社デンソー | 燃料ポンプ |
DE102018219995A1 (de) * | 2018-11-22 | 2020-05-28 | Robert Bosch Gmbh | Seitenkanalverdichter für ein Brennstoffzellensystem zur Förderung und/oder Verdichtung von einem gasförmigen Medium |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2080272A (en) * | 1934-11-07 | 1937-05-11 | Mcilvaine Burner Corp | Control valve for oil burners |
US2604853A (en) | 1946-08-02 | 1952-07-29 | Taylor Francis William | Rotary fluid pump or motor |
US2604852A (en) * | 1948-05-03 | 1952-07-29 | Fairbanks Morse & Co | Pump impeller |
US4854830A (en) * | 1987-05-01 | 1989-08-08 | Aisan Kogyo Kabushiki Kaisha | Motor-driven fuel pump |
JPH0531279Y2 (de) * | 1988-05-25 | 1993-08-11 | ||
JPH0330596U (de) * | 1989-07-31 | 1991-03-26 | ||
DE4022467C3 (de) * | 1990-07-14 | 1995-08-31 | Vdo Schindling | Förderaggregat, insbesondere zur Förderung von Kraftstoff |
DE4123089C2 (de) * | 1991-07-12 | 1998-02-19 | Mannesmann Vdo Ag | Kraftstoff-Förderaggregat |
JP2587712Y2 (ja) * | 1992-04-27 | 1998-12-24 | 自動車機器株式会社 | ラジアルプランジャポンプのピントル固定構造 |
DE4314515A1 (de) * | 1993-05-03 | 1994-11-10 | Vdo Schindling | Kraftstoff-Förderaggregat für Kraftfahrzeuge |
DE19716086C2 (de) * | 1997-04-17 | 1999-06-02 | Mannesmann Vdo Ag | Seitenkanalpumpe |
FR2768192B1 (fr) * | 1997-09-08 | 2004-01-23 | Marwal Systems | Pompe turbine a rendement ameliore notamment pour reservoir de carburant de vehicule automobile |
-
2000
- 2000-04-20 DE DE10019913A patent/DE10019913A1/de not_active Withdrawn
-
2001
- 2001-03-09 WO PCT/EP2001/002670 patent/WO2001081769A1/de active IP Right Grant
- 2001-03-09 CN CNB018009964A patent/CN100516545C/zh not_active Expired - Fee Related
- 2001-03-09 KR KR1020017016315A patent/KR100764942B1/ko not_active IP Right Cessation
- 2001-03-09 AU AU50375/01A patent/AU5037501A/en not_active Abandoned
- 2001-03-09 BR BRPI0106074-0A patent/BR0106074B1/pt not_active IP Right Cessation
- 2001-03-09 JP JP2001578826A patent/JP2003532011A/ja not_active Withdrawn
- 2001-03-09 EP EP01923657A patent/EP1200740B1/de not_active Expired - Lifetime
- 2001-03-09 ES ES01923657T patent/ES2280358T3/es not_active Expired - Lifetime
- 2001-03-09 DE DE50112030T patent/DE50112030D1/de not_active Expired - Lifetime
- 2001-04-20 US US09/839,280 patent/US6488466B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0181769A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU5037501A (en) | 2001-11-07 |
KR20020036788A (ko) | 2002-05-16 |
DE10019913A1 (de) | 2001-10-25 |
US6488466B2 (en) | 2002-12-03 |
JP2003532011A (ja) | 2003-10-28 |
US20020004001A1 (en) | 2002-01-10 |
BR0106074B1 (pt) | 2009-05-05 |
EP1200740B1 (de) | 2007-02-14 |
ES2280358T3 (es) | 2007-09-16 |
BR0106074A (pt) | 2002-03-26 |
CN1366586A (zh) | 2002-08-28 |
DE50112030D1 (de) | 2007-03-29 |
WO2001081769A1 (de) | 2001-11-01 |
CN100516545C (zh) | 2009-07-22 |
KR100764942B1 (ko) | 2007-10-08 |
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